Solution:-
1) The required sample size is 11.
Confidence level = 90%
M.E = 5
S.D = 10
n = 10.8241
n = 11
No, this number if IQ scores is a fairly small number.
Question Help An IQ test is designed so that the mean is 100 and the standard...
Question Help An IQ test is designed so that the mean is 100 and the standard deviation is 18 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidence that the sample mean is within 8 IQ points of the true mean. Assume that a = 18 and determine the required sample size using technology. Then determine if this is a...
Help An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 8 IQ points of the true mean. Assume that o = 20 and determine the required sample size using technology. Then determine if this is a reasonable...
An IQ test is designed so that the mean is 100 and the standard deviation is 18 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence at the sample mean s within 5 Q poln softhe true mea Assume that σ 18 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...
An IQ test is designed so that the mean is 100 and the standard deviation is 22 for the population of normal adults. Find the sample size necessary to estimate the mean I score of statistics students such that it can be said with 90% confidence that the sample mean is within 40 points of the true mean. Assume that o 22 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...
A and B questions An 1Q test is designed so that the mean is 100 and the standard deviation is 22 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 6 IQ points of the true mean. Assume that σ = 22 and determine the required sample size using technology. Then determine if this...
Ani in designed so that the mean is 100 and the standard deviation is 16 for the population of normal sults. Find the sample se necessary to estimate the mean to score of statistics students such that it can be said with 90% confidence that the sample mean is within 410 points of the men Asume that a 16 and determine the required sample sue using technology. Then determine if this is a reasonable sample wire for a real world...
test is designed so that the mean is 100 and the standard deviations for the population of normal adults Find the sample se necessary to estimate the mean I score of statistics students such that it can be said with confidence that the sample en is within 60 points of the true mean Assume that a 25 and determine the required samples using technology Thonetermine this is a reasonable sample sice for a real world calculation required samplese Round up...
An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 3 IQ points of the true mean. Assume that o=13 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...
An IQ test is designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 4 IQ points of the true mean. Assume that o = 20 and determine the required sample size using technology. Then determine if this is a reasonable sample...
An IQ test is designed so that the mean is 100 and the standard deviation is 21 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 4 IQ points of the true mean. Assume that sigmaσequals=21 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...